diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -52,12 +52,12 @@ Topics:
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May 13| **Graphics pipeline**
depth buffer method, shading, shadow, anti aliasing | [task04](task04) | [[12]](http://nobuyuki-umetani.com/acg2024s/rasterization_3d.pdf) [[13]](http://nobuyuki-umetani.com/acg2024s/graphics_pipeline.pdf) |
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May 20| **Ray Casting 1**
spatial data structure | [task05](task05) | [[14]](http://nobuyuki-umetani.com/acg2024s/shading.pdf) [[16]](http://nobuyuki-umetani.com/acg2024s/implicit_modeling.pdf) |
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May 27| **Ray Casting 2**
Rendering equation, Monte Carlo integration | [task06](task06) | [[15]](http://nobuyuki-umetani.com/acg2024s/rasterization_subpixel.pdf) [[17]](http://nobuyuki-umetani.com/acg2024s/ray_casting.pdf) [[18]](http://nobuyuki-umetani.com/acg2024s/monte_carlo_integration.pdf) [[19]](http://nobuyuki-umetani.com/acg2024s/ray_triangle_collision.pdf) |
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June 3| **Character animation**
Linear blend skinning | [task07](task07) | [[21]](http://nobuyuki-umetani.com/acg2024s/jacobian.pdf) |
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June 3| **Character animation**
Skeletal animation | [task07](task07) | [[21]](http://nobuyuki-umetani.com/acg2024s/jacobian.pdf) |
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June 10| Guest lecture by Dr. Rex West | | |
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June 17| **Character animation2**
Inverse kinematic | [task08](task08) | [[20]](http://nobuyuki-umetani.com/acg2024s/character_deformation.pdf) |
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June 17| **Character animation2**
linear blend skinning | [task08](task08) | [[20]](http://nobuyuki-umetani.com/acg2024s/character_deformation.pdf) |
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June 24| **Optimization**
Newton-Raphson method, gradient descent | | [[22]](http://nobuyuki-umetani.com/acg2024s/optimization.pdf) |
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July 1| **Laplacian mesh deformation**
Sparse linear system | [task09](task09) | [[23]](http://nobuyuki-umetani.com/acg2024s/mesh_laplacian.pdf) [[24]](http://nobuyuki-umetani.com/acg2024s/sparse_linear_system.pdf) |
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July 8| **Grid-based Fluid**
Poisson equation, Stam fluid | | |
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July 8| **Grid-based Fluid**
Poisson equation, Stam fluid | | [[25]](http://nobuyuki-umetani.com/acg2024s/fluid_simulation.pdf) |
## Grading
@@ -140,6 +140,7 @@ Look at the following document.
- [[22] Optimization](http://nobuyuki-umetani.com/acg2024s/optimization.pdf)
- [[23] Mesh laplacian](http://nobuyuki-umetani.com/acg2024s/mesh_laplacian.pdf)
- [[24] Sparse linear system](http://nobuyuki-umetani.com/acg2024s/sparse_linear_system.pdf)
+- [[25] Fluid simulation](http://nobuyuki-umetani.com/acg2024s/fluid_simulation.pdf)